Function get_list_values

datafusion/spark/src/function/map/utils.rs:48–58

Helper function to get [`values`](arrow::array::ListArray::values) from [`ListArray`](arrow::array::ListArray)/[`LargeListArray`](arrow::array::LargeListArray)/[`FixedSizeListArray`](arrow::array::FixedSizeListArray) [`NullArray`](arrow::array::NullArray) can be coerced to `ListType`([`Null`](DataType::Null)), so [`NullArray`](arrow::array::NullArray) is returned For all other types [`exec

(array: &ArrayRef)

/// [`NullArray`](arrow::array::NullArray) can be coerced to `ListType`([`Null`](DataType::Null)), so [`NullArray`](arrow::array::NullArray) is returned<br>
/// For all other types [`exec_err`] is raised
pub fn get_list_values(array: &ArrayRef) -> Result<&ArrayRef> {
    match array.data_type() {
        DataType::Null => Ok(array),
        DataType::List(_) => Ok(array.as_list::<i32>().values()),
        DataType::LargeList(_) => Ok(array.as_list::<i64>().values()),
        DataType::FixedSizeList(..) => Ok(array.as_fixed_size_list().values()),
        wrong_type => exec_err!(
            "get_list_values expects List/LargeList/FixedSizeList/Null as argument, got {wrong_type:?}"
        ),
    }
}

/// Helper function to get [`offsets`](arrow::array::ListArray::offsets)
/// from [`ListArray`](arrow::array::ListArray)/[`LargeListArray`](arrow::array::LargeListArray)/[`FixedSizeListArray`](arrow::array::FixedSizeListArray)<br>